activity
20242026
collaborators

5 papers

stat.ME2026

Association measures for two-way contingency tables based on multi-categorical proportional reduction in error

Wataru Urasaki, Kouji Tahata, Sadao Tomizawa

In two-way contingency tables under an asymmetric situation, where the row and column variables are defined as explanatory and response variables, respectively, quantifying the ext…

stat.ME2025

Modeling asymmetry in multi-way contingency tables with ordinal categories via f-divergence

Hisaya Okahara, Kouji Tahata

This study introduces a novel model that effectively captures asymmetric structures in multivariate contingency tables with ordinal categories. Leveraging the principle of maximum…

stat.ME2024

A measure of departure from symmetry via the Fisher-Rao distance for contingency tables

Wataru Urasaki, Go Kawamitsu, Tomoyuki Nakagawa +1

A measure of asymmetry is a quantification method that allows for the comparison of categorical evaluations before and after treatment effects or among different target populations…

stat.ME2024

A generalized ordinal quasi-symmetry model and its separability for analyzing multi-way tables

Hisaya Okahara, Kouji Tahata

This paper addresses the challenge of modeling multi-way contingency tables for matched set data with ordinal categories. Although the complete symmetry and marginal homogeneity mo…

stat.ME2024

Visualization for departures from symmetry with the power-divergence-type measure in two-way contingency tables

Wataru Urasaki, Tomoyuki Nakagawa, Jun Tsuchida +1

When the row and column variables consist of the same category in a two-way contingency table, it is specifically called a square contingency table. Since it is clear that the squa…